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Syntheses, Properties, and Structures of Bis(trifluorovinyl) Tellurium Compounds
Author(s) -
Naumann Dieter,
Tyrra Wieland,
von Foullon Alexander,
Pantenburg Ingo
Publication year - 2009
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200801415
Subject(s) - tellurium , chemistry , bromine , difluoride , trifluoroacetic anhydride , chlorine , xenon difluoride , crystallography , ion , propionitrile , trifluoroacetic acid , ligand (biochemistry) , medicinal chemistry , stereochemistry , inorganic chemistry , organic chemistry , acetonitrile , biochemistry , receptor
The reaction of AgC 2 F 3 , prepared from Me 3 SiC 2 F 3 and AgF, with elemental tellurium in propionitrile yields solutions of Te(C 2 F 3 ) 2 . Oxidations of these solutions with either xenon difluoride, elemental chlorine or bromine give the corresponding bis(trifluorovinyl)tellurium dihalides Te(C 2 F 3 ) 2 F 2 , Te(C 2 F 3 ) 2 Cl 2 and Te(C 2 F 3 ) 2 Br 2 in moderate yields. Ligand exchangebetween Te(C 2 F 3 ) 2 F 2 and trifluoroacetic acid anhydride yields Te(C 2 F 3 ) 2 (OCOCF 3 ) 2 . Further attempted exchange reactions resulted in complex mixtures. At –78 °C Te(C 2 F 3 ) 2 F 2 reacts with fluoride ions with formation of the ion [Te(C 2 F 3 ) 2 F 3 ] – , which decomposes already at –40 °C under formation of mainly [Te(C 2 F 3 )F 4 ] – and Te(C 2 F 3 ) 2 . The solid‐state structures of Te(C 2 F 3 ) 2 F 2 , Te(C 2 F 3 ) 2 Cl 2 , Te(C 2 F 3 ) 2 Br 2 and Te(C 2 F 3 ) 2 (OCOCF 3 ) 2 have been elucidated.